New changelog entries:
* QA upload.
* New upstream release.
- This release unifies libytnef and ytnef in a single autotools package.
The source should be renamed to ytnef, but will do later on due to
the stretch freeze.
* Drop all patches, merged upstream.
* Add Vcs-* fields pointing to new collab-maint git repo.
* Bump debhelper compat to v10.
* Update to Standards-Version 3.9.8, with no changes needed.
* Update Homepage field and watch file to point to Github project.
* Rewrite rules using dh sequencer.
* Rewrite copyright using machine-readable format v1.0.
* Pass --list-missing to dh_install.
* Pass -c4 to dpkg-gensymbols.
* Introduce a new ytnef-tools binary and tweak descriptions to mention it.
* Enable all hardening options.